DOI: 10.52150/2522-9117-2024-38-469-481

Tsikoliia Anzor Zamirovych, Ph. D. Student, Department of Industrial Engineering, Institute of Industrial and Business Technologies, Ukrainian State University of Science and Technologies, Lazaryana St., 2, Dnipro, 49010, Ukraine. E-mail: Anzor0409@gmail.com

Nykytiuk Mykhailo Volodymyrovych, Head of Engineering Department, Primetals Technologies Ukraine LLC, Dmytra Yavornytskoho Ave., 1A, Dnipro, 49005, Ukraine. E-mail: mykhailo.nykytiuk@primetals.com

Kononov Dmytro Oleksandrovych, Ph. D. (Tech.), Associate Professor, Department of Industrial Engineering, Institute of Industrial and Business Technologies, Ukrainian State University of Science and Technologies, Lazaryana St., 2, Dnipro, 49010, Ukraine. ORCID: 0000-0001-9505-5298. E-mail: d.o.kononov@ust.edu.ua

THE APPLICATION OF THE COILBOX INTERMEDIATE REWINDING DEVICE FOR REDUCING ENERGY CONSUMPTION AND IMPROVING THE EFFICIENCY OF ROLLING PRODUCTION IN CONTINUOUS SHEET MILLS

Abstract. This study investigates the effectiveness of the intermediate rewinding device CoilBox, which plays a crucial role in preserving the thermal properties of metal rolling. The CoilBox technology, developed by Stelco Incorporated in 1969, involves the high-speed coiling of hot strip and subsequent uncoiling before the finishing mill group. This approach reduces heat losses through radiation and maintains a uniform temperature profile throughout the rolling process. Throughout its development and refinement, numerous tests have confirmed CoilBox’s advantages over traditional rolling systems. Initial prototypes were tested at the Hilton Works hot strip mill in Hamilton (1972-1973) and the Westernport mill in Australia (1979). After a successful commercial implementation at the Bochum hot strip mill in 1982, CoilBox technology gained widespread adoption, with 50 installations established worldwide by 1978. The use of CoilBox significantly impacts the enhancement of the rolling process’s efficiency. Analysis shows a reduction in power consumption and a decrease in the average moment to a similar extent. This results in a reduction in temperature variation along the strip, leading to a decrease in thickness differences in the finished product. The stability of the rolling process is also confirmed by a reduction in the standard deviation of the moment in most mill stands. CoilBox not only improves production efficiency but also aligns with sustainable development principles. Lower energy consumption and reduced CO₂ emissions contribute to the ecological sustainability of production processes. The CoilBox technology enables the expansion of product range, increases the share of hot-rolled coils, and reduces energy costs, making it an essential tool for improving product quality and reducing the environmental impact of manufacturing.

Keywords: heat retention, intermediate rewinding device, CoilBox, hot-rolled steel strip, production efficiency, energy savings.

DOI: https://doi.org/10.52150/2522-9117-2024-38-469-481

For citation: Tsikoliia, A. Z., Nykytiuk, M. V., & Kononov, D. O. (2024). The application of the CoilBox intermediate rewinding device for reducing energy consumption and improving the efficiency of rolling production in continuous sheet mills. Fundamental and applied problems of ferrous metallurgy, 38, 469-481. https://doi.org/10.52150/2522-9117-2024-38-469-481

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